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Intumescent Fire Dampers - 1 Hour Fire Resistance
Tecfire intumescent dampers (air transfer grilles) have been designed and are manufactured to prevent the spread of fire through ducts or apertures in fire resisting elements such as partitions and doors.
Tecfire dampers are produced from PVC slats filled with a high performance intumescent materi...

Intumescent Fire Dampers - 1 Hour Fire Resistance

Tecfire intumescent dampers (air transfer grilles) have been designed and are manufactured to prevent the spread of fire through ducts or apertures in fire resisting elements such as partitions and doors.

Tecfire dampers are produced from PVC slats filled with a high performance intumescent material which are assembled to form a matrix. In the event of a fire the
slats and framing components swell to many times their original thickness, fusing together to form a non combustible mass which prevents the passage of hot
smoke and gases.

Tecfire dampers have been tested and assessed by the Warrington Fire Research Centre and maintained their integrity for a minimum of 60 Mins.

Construction
Tecfire dampers consist of a sodium silicate intumescent
material encapsulated within 40mm x 6mm PVC
extrusions which are assembled to form a matrix,
mortised jointing of the damper slats to the intumescent
outer components eliminates any need for any metal
componetry. (Circular units have a pair of outer
aluminium rings). Each damper is manufactured 2mm
less than the corresponding duct or aperture size to
provide clearance during installation.
Tecfire dampers are available up to a maximum size of
600mm x 600mm in 25mm increments.

Installation
Ducts - Tecfire dampers should be secured within
ducting using not less than 4 self tapping screws (on
circular units two self tapping screws must be used to
fix each aluminium ring).
Doors and Partitions - Ensure that cutting an
aperture in the door will not detract from the fire integrity
of the door. Contact the manufacturer to establish
maximum size and optimum position. Cut the aperture
to the required size with a gap all around of 3mm. Apply
intumescent mastic to the inside faces of the aperture.
Fit the damper into the aperture and ensure that it is
positioned equidistant from each face and parallel to
both faces of the door. Fit retaining 25mm wood screws
through the pre-drilled holes in damper outer uprights
into door. Clean off surplus mastic and ensure outer
edge of damper is fully sealed. Position pressed steel
cover grilles centrally over both faces of the damper and
fix with 25mm wood screws.

Maintenance
Tecfire dampers contain no moving parts and require
little or no maintenance. Units may be dusted or cleaned
using a vacuum cleaner or brush.

Advantages

Up to one hour fire resistance

Free area approx 60%

Slimline construction - 40mm thick

Low maintenance - no moving parts

Circular and rectangular units available

Bi-directional air flow

Details

Product Type

Fire Block

Manufacturer Product Code

889469

Quick Search:

QS1238

Delivery

Delivery cut off dates over the holidays for 2016/2017

Last Orders for delivery before Christmas Please call us on 020 8463 9696 or place orders online at www.i-sells.co.uk by midday Tuesday 20th December 2016.

Last orders for Collection in person at our Trade Counter Please come and see us by midday Wednesday 21st December 2016.

Customer services Will be available up until midday Wednesday 21st December 2016.

All orders are subject to availability. Please call us on 020 8463 9696 to check availability or likely despatch date.

All orders placed after midday Tuesday 20th December 2016 will be processed on our return 8am Tuesday 3rd January 2017.

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